HAVANA – Thousands of Cubans have taken to the streets to combat dengue
fever,
which has killed at least two people and infected hundreds of others in
the worst
outbreak the capital has seen in more than two decades.

Mosquitoes are blamed for spreading the tropical disease, which has seen
explosive
growth in the Americas in recent years, reaching as far north as Texas.

In Cuba, President Fidel Castro has vowed to stop the outbreak in its tracks,
hunting down every last mosquito "even if it's one by one."

"The mosquito has no possible chance of escape. We've got the entire populace
fighting the epidemic," he told reporters earlier this month.

A 1981 epidemic killed 158 Cubans, including 51 children, in what was later
called
the worst single outbreak of dengue fever.

Mr. Castro blamed the United States for that episode. He accused covert
agents of
introducing the virus as part of a biological warfare campaign, an accusation
the U.S.
denied.

This time around, Mr. Castro blames a black mosquito known as the Aedes
aegypti,
a dime-size bug that bites during the day.

The mosquito thrives in crowded cities and breeds in stagnant water. The
female
requires blood for its eggs to mature – and humans are a convenient target.

In January, Cuban authorities dispatched the first of 11,000 workers to
fumigate
every home and building in Havana, the eastern city of Guantánamo
and the
western town of Pinar del Rio.

Workers carry what they call "bazookas," a shoulder-held device that resembles
a
leaf blower and fills the air with white plumes of insecticide.

Residents who refuse to let the workers fumigate face fines and possible
jail time.
But the anti-mosquito campaign has broad public support and very few people
interfere.

"We have to help for everyone's well-being," said Ana Rosa Menendez, a
57-year-old retiree.

"The fumigation doesn't bother me at all because it kills cockroaches,
too," said
another resident, Yamila Chanfrau Santos, 39, a secretary.

American officials refused to let workers fumigate the residence of Vicki
Huddleston,
the chief U.S. diplomat in Cuba. An official explained that there was some
concern
about the insecticide used.

"We don't know what's in it," he said.

Marta Beatriz Roque, a dissident and economist who has served jail time
for her
opposition to the socialist regime, also had concerns.

The first fumigation of her house made her sick, she said. So when workers
returned a second time, she refused to let them in.

She said she was detained in what turned out to be the first of four arrests
for
failure to comply.

Authorities also fined her 600 Cuban pesos, or about $23, which is about
what a
surgeon on the island earns in one month.

Before workers fumigated for the third time, she said, about 15 policemen
surrounded her house.

"It seemed like they came to arrest a terrorist or a murderer," she said.
"They took
me to the command post for mosquito control. They took away my key, came
back
to the house and fumigated."

She said she was also arrested when workers returned for the fourth and
fifth
sprayings and she was strip-searched each time by female security agents
who were
ostensibly looking for her house key.

A female friend who was in her house when the workers arrived also was
taken away
and strip-searched, Ms. Roque said.

"They do it to humiliate you," she said.

Government authorities deny mistreating dissidents. Mosquito control officials
did
not respond to an interview request.

Dengue fever has been around for at least several hundred years. Philadelphia
doctor Benjamin Rush called it "breakbone fever" in 1780 because of the
terrible
joint and muscle pain it can cause.

Dengue outbreaks have traditionally hit Africa and Asia, but cases in the
Americas
have been rising over the last two decades, stretching into Mexico and
southern
Texas.

Some 2.5 billion people are at risk, and more than a million cases are
reported
every year, the World Health Organization says.

According to state-run media in Cuba, the current outbreak had as of the
end of
November infected more than 1,600 people in 96 of the country's 169
municipalities.

Roof-top water tanks are one of the insect's favorite homes in Havana.
They often
are found in spiritual water, too.

Many Cubans leave out glasses of water for Afro-Cuban gods or Catholic
saints.
Authorities are now warning people to change their spiritual water every
two days or
risk infestation.

As part of the campaign, workers have also picked up thousands of tons
of trash
where mosquitoes might be breeding and hiding out. They are spending $25
million
to repair or replace thousands of leaky water pipes. And they are distributing
free
covers for residents' outdoor water tanks.

"It's an aggressive and effective campaign," said Bacilio Hernandez, 41,
a Havana
taxi driver who recently recovered from dengue. "I don't think there will
be a single
mosquito left in Cuba after this offensive against dengue."

But that won't be the end of it. After the mosquitoes are gone, Mr. Castro
said, he
plans to go after another disease-spreading creature: